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Casimir I of Cieszyn (Polish: Kazimierz I cieszyński, Czech: Kazimír I. Těšínský, German: Kasimir I. von Teschen; 1280/90 – c. 29 September 1358), was Duke of Cieszyn from 1315, Duke of Siewierz from 1337 and Duke of Bytom from 1357. He was the second son of Mieszko I, Duke of Cieszyn by his wife, probably called Grzymisława.
- 1280/90
- ?Grzymisława Vsevolodovna of Belz
- c. 29 September 1358
- Mieszko I, Duke of Cieszyn
Apr 28, 2022 · Casimir I of Cieszyn (Polish: Kazimierz I cieszyński, Czech: Kazimír I. Těšínský, German: Kasimir I. von Teschen; 1280/90 – c. 29 September 1358), was Duke of Cieszyn from 1315, Duke of Siewierz from 1337 and Duke of Bytom from 1357. He was the second son of Mieszko I, Duke of Cieszyn by his wife, probably called Grzymisława.
- 1285
- Jenn Sedik
- April 28, 2022
He married Euphemia von Masowien before about 19 August 1324. They were the parents of at least 5 sons and 4 daughters. He died on 29 September 1358, in Cieszyn, Kraków, Poland, at the age of 78, and was buried in Cieszyn, Kraków, Poland.
- Male
- Euphemia Von Masowien
Jun 22, 2015 · Kasimir (Kazimierz I) "Duke of Cieszyn" Cieszyński formerly Piast aka von Teschen. Born after 1276 [location unknown] Ancestors. Son of Miesko (Piast) Cieszyński and Unknown Unknown. Brother of Wladislaw (Piast) Oświęcimski and Viola Elisabeth (Teschen) Cieszyńska. Husband of Euphemia (Piast) Mazowiecka — married after 1321 [location unknown]
- Male
- Euphemia (Piast) Mazowiecka
Apr 27, 2022 · Kazimierz I, Duke of Cieszyn. son. Elizabeth of Teschen. daughter. Władysław, Duke of Opole. father. Euphemia of Greater Poland. mother. Kazimierz II zu Beuthen-Kosel, k... brother. Duke Bolko I of Opole. brother. Przemysław raciborski. brother. Konstancja wodzisławska. sister. About Mieszko I, Duke of Cieszyn.
In 1321 Kazimierz married Princess Eufemia, often referred to as Ofka (* c.1310 + after January 1374), the daughter of Trojden I, the Prince of Sochaczew and Czersk, and Maria, the daughter of Jerzy I, the King of Halicz, establishing the tradition of marriages between Cieszyn and Mazovian Piasts.
Casimir II of Cieszyn ( Polish: Kazimierz, Czech: Kazimír; c. 1449 – 13 December 1528) was a Duke of Cieszyn since 1477, ruler over Koźle during 1479–1509, since 1493 ruler over Wołów, over Pszczyna during 1498–1517, from 1506 over Opava, Duke of Głogów since 1506 (for life).
